Signal lamp



FIG. 1 is a perspective view taken from the top, front and left sides of the signal lamp showing my new design;

FIG. 2 is a front elevational view of the signal lamp; the rear side view being a mirror image of the front;

FIG. 3 is a left side view of the signal lamp, the right side view being a mirror image of the left side;

FIG. 4 is a bottom plan view of the signal lamp; and,

FIG. 5 is a top plan view thereof. 

The ornamental design for a signal lamp, as shown and described. 